Box Papers! I should normally end the description right there and then and let the pictures speak of themselves but it is not enough. Finding a Constellation from the 50's with its papers is simply impossible. The watch is well preserved and patina is very even. Case and bezel look worn/slightly polished. The 501 movement is very clean and well preserved as well.
 
Details:
 
Brand: Omega
Model: Constellation
Reference: 2852SC
Year: 1956
Material: Stainless Steel and 14k Gold
Dimensions:  35mm
Crystal:  Plexiglass
Movement: Cal 501 Automatic
Bracelet/Strap: Vintage NOS 18mm Leather Band
Box/Papers: Yes/Yes